This is the 1964th most frequent Korean word.
러
The Korean syllable "러" does not have a standalone meaning but is often used as part of words or grammatical structures.
In this sentence, '러' is used as a verbal suffix to indicate the purpose or intention of actions when following motion verbs.
이곳에 사진을 찍으러 왔어요.
I came here to take photos.
Here, '러' is combined with a verb to express the intention behind a motion activity, specifying the purpose for which someone moves.
그는 나를 도우러 멀리서 달려왔어요.
He ran from far away to help me.
The word '러' links the activity of walking (산책하다) with the act of going (갔다), emphasizing the purpose of the motion.